3M Filtrete 14 In. x 20 In. x 1 In. Basic Dust & Lint 300 MPR Furnace Filter

You run a tight ship at home, from floor to ceiling - and everywhere in between. Unfortunately, ordinary home non-electrostatic air filters aren't super effective at capturing unwanted particles. Good News: The unique design of the electrostatically charged Filtrete Basic Dust Air Filter attracts and traps more particles from your air through your heating and cooling system, making quality control a breeze. With each cycle through the filter, your indoor air becomes a little bit cleaner.